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OpenAdvisories
Medium · 6.1 CVE-2024-34500 BIT-mediawiki-2024-34500EUVD-2024-1874GHSA-wcx3-63mm-h8x6

MediaWiki UnlinkedWikibase Cross-site Scripting vulnerability

Published May 5, 2024 · Updated Nov 4, 2025 · Assigned by mitre

Description

An issue was discovered in the UnlinkedWikibase extension in MediaWiki before 1.39.6, 1.40.x before 1.40.2, and 1.41.x before 1.41.1. XSS can occur through an interface message. Error messages (in the $err var) are not escaped before being passed to Html::rawElement() in the getError() function in the Hooks class.

Affected packages

EcosystemPackageAffectedFixedRecord
Packagist samwilson/unlinked-wikibase < 1.42.0 1.42.0 GHSA-wcx3-63mm-h8x6

Advisories 1

References